Let's just tell me what that is and assume that I havn't had time to read every page of every thread.
It stands for "One True Pairing". Basically "who is the best couple". I'm surprised. Usually people over on Ponychan are fiercely defensive of their favorite pairing. But over here on Ponythread, not so much.
For your dedication to ponies and giving us all entertainment with your quote tree o' doom, I hereby award you the Louisianan Purchase. How can I do that? Long story short, let's just say I picked a doozy of a poker game to go "all in".